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Finding the Fourth Proportional to 28,823.25, 39,808.89 and 19,375.41

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Solution

The fourth proportional to 28,823.25, 39,808.89 and 19,375.41 is: 26,760.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,823.25 : 39,808.89 = 19,375.41 : x
  2. Step 2: Convert to fraction form
    28,823.25/39,808.89 = 19,375.41/x
  3. Step 3: Cross multiply
    28,823.25x = 39,808.89 × 19,375.41
  4. Step 4: Simplify right side
    28,823.25x = 771,313,565.39
  5. Step 5: Solve for x
    x = 771,313,565.39/28,823.25
  6. Step 6: Final answer
    x = 26,760.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.